Towing
卡车配备以弹簧压力接合的制动器。 停车制动器通过机油压力来松开。
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不正确牵引不能行驶的机器，会引起人员伤亡。 松开制动器前，楔住机器以防止移动。 如不楔牢，机器可能自由滚动。 |
- 适时接合停车制动器。
- 挡住车轮。
- 起动发动机，将变速箱的档位选择器移至空档位置。
- 转动点火开关以关闭发动机。
- 分流阀 (1) 的滑阀须移至牵引位置以便向停车制动器松放阀供油。
- 松开分流阀上的两个紧固螺栓 (2) 并将板件 (3) 和滑阀 (4) 移到左侧。 移动滑阀后，拧紧紧固螺栓 (2) 。 这样可让供油流向停车制动器松放阀。
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| 图 1 | g01258283 |
773F 和 775F 卡车左机架导轨视图 | |
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| 图 2 | g01262459 |
777F 卡车视图 | |
- 用接头和软管将 8T-0857 压力表 连接到机器后部的压力检测口上。
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| 图 3 | g00540258 |
停车制动器松放压力检测口位置 | |
- 检测停车制动器的压力。 停车制动器的压力应降至 34 千帕 (5 磅/平方英寸)到 103 千帕 (15 磅/平方英寸)之间。
- 启用辅助转向泵开关 (5) 并将其保持在开启位置。 停车制动器压力应大于或等于 3792 千帕 (550 磅/平方英寸)。
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| 图 4 | g01262476 |
顶部开关视图 | |
- 将变速箱的档位选择器移至停车位置。
- 将牵引阀 (1) 的滑阀移到运行位置。
- 起动发动机，将变速箱的档位选择器移至空档位置。
- 当发动机以低怠速运行时，检查停车制动器压力。 停车制动器压力应大于或等于 3792 千帕 (550 磅/平方英寸)。
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